EVERYDAY SCIENCE

Detailed explanation-1: -Key Points. Male cones give rise to microspores, which produce pollen grains, while female cones give rise to megaspores, which produce ovules.

Detailed explanation-2: -Male pine cones produce pollen, which is like a powder. The male cones release their pollen, which is carried around the air by blowing wind, and hopefully to another female pine cone on a different pine tree. If the pollen reaches a female pine cone, this process is called pollination.

Detailed explanation-3: -Pollen, which contains the male sex cells, is produced in pollen cones, which are essentially miniature branches with modified leaves called scales that house the male reproductive organs.

Detailed explanation-4: -There are two types of cones on most Pacific NW conifers: seed cones and pollen cones. These are female and male reproductive organs, respectively. Pollen (from the pollen cones / male cones) has to reach the ovules (in the seed cones / female cones) in order to fertilize them, creating seeds.

Detailed explanation-5: -Pollen grains are carried by the wind and reach female cones. What are the reproductive structures of angiosperms? Flowers are reproductive organs that are composed of four kinds of specialized leaves: sepals, petals, stamens, and carpels.